# BQ25792RQMR (Component)
## Description
Charger IC Lithium Ion/Polymer 29-VQFN-HR (4x4)
The BQ25792 is a switch-mode synchronous buck-boost charger with full power-path management. It can automatically regulate power flow between the input source, system load, and battery.
It supports a wide input range and is designed for USB Type-C™ / USB Power Delivery (USB-PD) systems, enabling both charging and OTG (power output from battery) operation.
⭐ Key Features
⚡ High-performance charging
Up to 5 A charge current
Supports 1S to 4S battery packs
High efficiency (up to ~96% under typical conditions)
Programmable switching frequency: 750 kHz or 1.5 MHz
🔋 Wide input support
Input voltage range: 3.6 V to 24 V
Absolute max rating up to 30 V
Supports USB adapters and barrel jack sources
Detects USB charging standards (BC1.2, DCP, CDP, HVDCP, etc.)
🔄 Buck-boost power conversion
Seamless buck, boost, and buck-boost operation
Maintains stable system voltage even when battery is low or input varies
🔌 USB-PD / OTG support
USB Power Delivery (PD 3.0 compatible)
Supports OTG output (battery powers USB port)
OTG voltage range: 2.8 V to 22 V
🧠 Intelligent power management
NVDC power path management (system can run without battery)
Dual-input power mux controller (select between two power sources)
Battery supplement mode (prevents input overload)
📊 Monitoring & control
Integrated 16-bit ADC for voltage, current, temperature monitoring
Fully I²C configurable
Autonomous or host-controlled operation
🛡️ Protection & safety
Input and battery over-voltage/over-current protection
Thermal regulation and shutdown
Charging safety timer
MOSFET protection (internal switching FETs included)
📦 Package
29-pin VQFN (4 mm × 4 mm) package
Industrial temperature range: -40°C to 85°C
#CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-charger
## Component Details
- **Owner:** adrian95
- **Created:** 5/20/2026
- **Last Updated:** 5/20/2026
- **Visibility:** Public
- **License:** https://creativecommons.org/licenses/by/4.0/
- **Implementation Details:** Official TI datasheet: https://www.ti.com/lit/ds/symlink/bq25792.pdf. Part: BQ25792RQMR; I2C controlled 1-4 cell 5-A buck-boost battery charger with dual-input selector and USB PD 3.0 OTG output; RQM VQFN-HR 29-pin 4 mm x 4 mm.
- **Part Type:** Integrated Circuits
- **Manufacturer Part Number:** BQ25792RQMR
- **Symbol Style:** parametric-v1
- **Datasheet URL:** https://www.lcsc.com/datasheet/C2862876.pdf
- **Manufacturer Name:** Texas Instruments
- **Used in:** 6 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/bq25792rqmr/texas-instruments?utm_currency=USD®ion=asia) | N/A | N/A |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/BQ25792RQMR/13577777) | N/A | N/A |
| [HQonline](https://www.hqonline.com/product-detail/sensor-and-detector-interface-chips-ti-bq25792rqmr-2500408686) | $1.66727 | 94 |
| [LCSC](https://www.lcsc.com/product-detail/C2862876.html) | $2.1997 | 884 |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/BQ25792RQMR?qs=81r%252BiQLm7BSrfMJlEm4Auw%3D%3D) | $7.04 | 3.5K |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** BQ25792RQMR
- **Mount Type:** Standard
- **Package / Case Code:** 16-VQFN
- **Pin Count:** 33
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 28 | SW1 | |
| 2 | VBUS_1 | |
| 5 | REGN | |
| 19 | BTST2 | |
| 4 | BTST1 | |
| 3 | VBUS_2 | |
| 25 | SYS | |
| 26 | SW2 | |
| 29 | PMID | |
| 23 | BAT_2 | |
| 22 | BAT_1 | |
| 10 | ACDRV2 | |
| 17 | ILIM_HIZ | |
| 20 | PROG | |
| 33 | SDRV_2 | |
| 13 | ~CE | |
| 11 | ACDRV1 | |
| 12 | ~QON | |
| 24 | SDRV_1 | |
| 30 | STAT_2 | |
| 1 | STAT_1 | |
| 7 | D- | |
| 15 | SDA | |
| 6 | D+ | |
| 21 | ~INT | |
| 14 | SCL | |
| 16 | TS_1 | |
| 27 | GND | |
| 32 | TS_2 | |
| 9 | VAC1_1 | |
| 18 | BATP | |
| 8 | VAC2 | |
| 31 | VAC1_2 | |
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